Service manual

FUEL INJECTION SYSTEM
8-66
B-1
Installed state of neutral switch. • Check for looseness or pinch-
ing.
Starting the
engine, and
activating the
speed sensor
by operating the
vehicle at 20 to
30 km/h.
B-2
Connections
• Neutral switch coupler
• Main wire harness ECU coupler
• Check the couplers for any pins
that may be pulled out.
• Check the locking condition of
the couplers.
• If there is a malfunction, repair it
and connect the coupler
securely.
B-3
Open circuit in neutral switch lead. • Repair or replace if there is an
open or short circuit.
• Between neutral switch coupler
and relay unit coupler
(Sky blue–Sky blue)
• Between relay unit coupler and
ECU coupler.
(Blue/Yellow–Blue/Yellow)
B-4
Defective neutral switch. • Execute the diagnostic mode.
(Code No.21)
• Replace if defective.
Refer to "CHECKING THE
SWITCHES" on page 8-81.
B-5
Faulty shift drum (neutral detection
area).
• Replace if defective.
Refer to "TRANSMISSION" on
page 5-84.
Fault code No. 42 Symptom
A. No normal signals are received from the speed sen-
sor.
B. Open circuit is detected in the neutral switch.
Diagnostic code No.
A 07 Speed sensor
B 21 Neutral switch
Order
Item/components and probable
cause
Check or maintenance job
Reinstatement
method